Series 851bG
Good to know Data & facts
Connection size
DN 15 to DN 50 1/2" to 2"Set pressure
0.5 bar to 50 barTemperature
-60 °C to 225 °CProduct design
angle-type
Material
Gunmetal
Nominal width
DN 15 to DN 50
1/2" to 2"
Medium
-
Air, gases and vapours
neutral, non-neutral -
Steam
-
Solar heating systems
Temperature in °C
-60 °C to 225 °C
Pressure in bar
0.5 bar to 50 bar
These high-performance safety valves with bellows are suitable for safeguarding non-intrinsically safe solar systems with temperatures up to over 200 °C as well as district heating supply systems, steam boilers and pressure vessels. The metal bellows protects sliding and moving parts from the medium and thus from dangerous deposits. The spring chamber and pressure spring are protected against steam penetration and high temperatures.
connection types
- Internal pipe thread
- Male thread
- steam- and industrial boiler plants
- pressure tanks and pressure systems
- District heating supply systems primary side
- Solar systems in building and industrial technology
- District heating supply systems with temperatures
- steam boiler
Safety valves are permanently set and sealed at the factory.
American Society of Mechanical Engineers
Approvals
NB#96038:
Usage
Steam/Gases (S/G)
Canadian Registration Number
Approvals
0G19709.5C:
Usage
Steam/Gases (S/G)
Manufacture License of Special Equipment People's Republic of China
Approvals
TSF700E45-2023:
Usage
Steam/Gases (S/G)
Korea Gas Safety Corporation
Approvals
ES-422 in combination with ASME :
Usage
Steam/Gases (S/G)
Eurasian Conformity
Approvals
EAЭC N RU Д-DE.CП28.B.08409/20:
EAЭC N RU Д-DE.CП28.B.00821/20:
Usage
Steam/Gases (S/G)
Det Norske Veritas
Approvals
TAP00001W5:
Usage
Steam/Gases (S/G)
Lloyd's Register
Approvals
LR2089493TA:
Usage
Steam/Gases (S/G)
Bureau Veritas
Approvals
26401/C0BV:
Usage
Steam/Gases (S/G)
Russian Maritime Register of Shipping
Approvals
19.40075.250:
Usage
Steam/Gases (S/G)
Registro Italiano Navale
Approvals
MAC096822XG:
Usage
Steam/Gases (S/G)